22004419 has 2 divisors, whose sum is σ = 22004420. Its totient is φ = 22004418.

The previous prime is 22004393. The next prime is 22004429. The reversal of 22004419 is 91440022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22004419 - 2⁹ = 22003907 is a prime.

It is a super-2 number, since 2×22004419² = 968388911055122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22004419.

It is not a weakly prime, because it can be changed into another prime (22004429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11002209 + 11002210.

It is an arithmetic number, because the mean of its divisors is an integer number (11002210).

Almost surely, 2^22004419 is an apocalyptic number.

22004419 is a deficient number, since it is larger than the sum of its proper divisors (1).

22004419 is an equidigital number, since it uses as much as digits as its factorization.

22004419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22004419 is about 4690.8868031535. The cubic root of 22004419 is about 280.2226927365. Note that the first 3 decimals are identical.

The spelling of 22004419 in words is "twenty-two million, four thousand, four hundred nineteen".